SDR SWAA2020031342440

Service difficulty report · Stringer · Boeing 7377BX

Difficulty date: February 21, 2020
Submitted: March 13, 2020
Operation: Air carrier
Aircraft: N554WN
Make and model: Boeing 7377BX
Aircraft serial: 30746
Aircraft time: 60,338 hours, 34,073 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Condition: Corroded
Location: Fuselage
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

***CORROSION*** ON STRINGER AT STA540, STR 23 LEFT (STA540,LBL45,WL159) CORROSION ON STR 23L BS 540 LBL 45 WL 159 FOUND TO BE OUT OF LIMITS I.A.W. SRM 53-00-03-1A-1 FIG 103 PAGE 8. REMOVED STR 23L I.A.W. SRM 51-40-02-0G-0. STA 515 TO 540. INSTALLED REPLACEMENT STR AND SPLICE I.A.W. SRM 53-00-03-2R-1 REPAIR 1.

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